document.write("<div id='progressionBlock' style='position: absolute; top: auto; left: auto; visibility: hidden;'>");
document.write("<img alt='请稍候...' title='请稍候...' src='/js/progression/progression.gif'></div>");

function showProgression() {
    var progressionBlock = document.getElementById('progressionBlock');
    if (progressionBlock) {
        progressionBlock.style.top = 200;
		progressionBlock.style.left = 200;
		progressionBlock.style.visibility = 'visible';
    }
}